28075328255 has 8 divisors (see below), whose sum is σ = 36281962752. Its totient is φ = 20732550048.

The previous prime is 28075328221. The next prime is 28075328257. The reversal of 28075328255 is 55282357082.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28075328255 - 2⁶ = 28075328191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28075328257) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 215963999 + ... + 215964128.

It is an arithmetic number, because the mean of its divisors is an integer number (4535245344).

Almost surely, 2^28075328255 is an apocalyptic number.

28075328255 is a deficient number, since it is larger than the sum of its proper divisors (8206634497).

28075328255 is a wasteful number, since it uses less digits than its factorization.

28075328255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431928145.

The product of its (nonzero) digits is 1344000, while the sum is 47.

The spelling of 28075328255 in words is "twenty-eight billion, seventy-five million, three hundred twenty-eight thousand, two hundred fifty-five".